Extech 475040 & 475044 Digital Force Gauge

176 oz, 5000g, 49 Newtons (±0.4% accuracy)

The Extech 475040 & 475044 Digital Force Gauge is a handy digital force gauge with a 5 digit LCD display and peak hold. Featuring an exclusive load cell measurement transducer.

Over range, low battery, and advanced function indicators come standard and the gauge features a .5kg/176oz/49 Newtons measurement capacity. The tool's basic accuracy is 0.4%. Complete with tension rod, carrying case, four adapters (flathead, cone, chisel, and hook for tension), and 6 AA batteries to get you working.


  • Range: 176 oz, 5000g, 49 Newtons (±0.4% accuracy)
  • Ideal for a wide variety of applications in the chemical, plastics, electronics, automotive, and machinery industries
  • Reversible display and fast/slow response mode
  • Exclusive load cell measurement transducer
  • Overrange, low battery, and advanced function indication
  • Zero adjust push-button and Peak Hold switch
  • Complete with hook adaptor for tension/compression adaptors, 5" extension rod, 6 AA batteries, and carrying case


475044 Range 44 lbs, 20kg, 196 Newtons
475044 Accuracy ±(0.5%rdg + 2 digits)
475040 Range 176oz, 5000g, 49 Newtons
475040 Accuracy ±(0.4%rdg + 1 digit)
Dimensions 8.9" H x 3.3" W x 1.5" D
Weight 1.2 lbs


The Extech Digital Force Gauge is available in two different models: 475040 & 475044.

  Range Accuracy (23°) Overload Capacity
475040 176 oz, 5000 g, 49 N ±(0.4%) 10 kg
475044 44 lbs, 20 kg, 196 N ±(0.5%) 30 kg

NIST Calibration

The Extech 475040 & 475044 Digital Force Gauges are available with standard factory calibration or with NIST Calibration Certification (adds 5 days to product lead time). NIST certification offers a traceable certificate that satisfies ISO & other regulatory requirements for product accuracy traceability to nationally recognized reference standards.

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This product comes standard with a 1-year warranty.

Return Information

  • Return windows close 30 days after you receive your item.
  • You are responsible for obtaining a Return Merchandise Authorization, the cost of shipping, and potential restocking fees, if the item has been opened.
  • To start a return, or to view the full returns policy, click here.
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